May 12 2025

Renting a generator can be a lifesaver during power outages, outdoor events, or construction projects. However, improper use can lead to dangerous situations like fires, carbon monoxide poisoning, or electrocution. Whether you’re a first-time renter or a seasoned user, these generator safety tips will help you stay safe and get the most out of your rental.

1. Choose the Right Size Generator

Before renting a generator, calculate your power needs. Overloading a generator can damage both the unit and your appliances. List the devices you’ll power and add their wattage (check labels or manuals). Opt for a generator with 20% more capacity than your total to avoid strain. For example, a 5,000-watt generator can comfortably handle 4,000 watts of load.

2. Understand Fuel Types

Generators run on gasoline, propane, or diesel. Each has pros and cons:

• Gasoline: Widely available but flammable and has a short shelf life.

• Propane: Burns cleaner and stores longer but requires special tanks.

• Diesel: Efficient for heavy-duty use but noisy and expensive.
  Confirm fuel availability and storage safety before renting.

3. Prioritize Placement and Ventilation

Never run a generator indoors, including garages or sheds, due to carbon monoxide (CO) risks. Place it at least 20 feet from windows, doors, or vents. Use a battery-powered CO detector nearby for added safety. Ensure the area is dry and flat to prevent tipping.

4. Use Heavy-Duty Extension Cords

Standard household cords can overheat under a generator’s load. Use outdoor-rated, grounded extension cords with a wattage rating higher than your appliances. For direct home wiring, hire an electrician to install a transfer switch (see Tip 10).

5. Ground Your Generator

Most rental generators require grounding to prevent electrocution. Drive a copper rod into the earth and connect it to the generator’s grounding terminal using a heavy-gauge wire. Check the manual for specific instructions.

6. Perform Regular Maintenance

Even short-term rentals need checks. Test the generator before taking it home. Ensure oil levels are adequate, and there’s no fuel leakage. Run it briefly to confirm smooth operation. Ask the rental company about maintenance logs or service history.

7. Turn It Off Before Refueling

Spilled fuel on a hot engine can ignite. Always shut down the generator and let it cool for 15–20 minutes before refueling. Keep a fire extinguisher nearby, and wipe up spills immediately.

8. Store Fuel Safely

Store fuel in approved containers away from living spaces. Never keep gasoline near the generator while it’s running. Label containers clearly, and avoid stockpiling excess fuel, especially in hot areas.

9. Follow the Manufacturer’s Guidelines

Every generator is different. Read the manual to understand startup/shutdown procedures, load limits, and safety features. If the rental company provides a quick-start guide, keep it handy.

10. Consider a Transfer Switch for Home Use

If powering your home, a transfer switch is essential. It prevents backfeeding, which can electrocute utility workers or damage your electrical system. Hire a licensed electrician to install it before connecting the generator.

Final Thoughts

Renting a generator doesn’t have to be risky if you follow these safety tips. Always verify the equipment’s condition with the rental company and ask questions if unsure. Prioritize ventilation, fuel safety, and proper sizing to avoid mishaps. By taking these precautions, you’ll ensure reliable power without compromising safety.

Stay powered, stay safe!